If you travel at least a little bit for work, you'll be interested in this RollerTop tray for your carry-on bag. It's a stand that hooks to the top of the handle on your roller bag, which folds out to give you a "stable" platform to put your laptop on. This way you can be checking email or surfing the net even when you're waiting in line to board.

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Of course, you could do that with a smartphone, but what smartphone has a 13-inch screen? Best of all, when your bag tips over and your laptop gets smashed to bits, you'll still have a nice platform to put your elbows on while you're sobbing.